v3.21.2
Document and Entity Information - USD ($)
 12 Months Ended
Jun. 30, 2021
Sep. 13, 2021
Dec. 31, 2020
Document And Entity Information      
Document Type 10-K    
Entity Central Index Key 0001127993    
Document Period End Date Jun. 30, 2021    
Current Fiscal Year End Date --06-30    
Document Fiscal Year Focus 2021    
Document Fiscal Period Focus FY    
Amendment Flag false    
Document Annual Report true    
Document Transition Report false    
Entity File Number 000-56006    
Entity Registrant Name GALAXY NEXT GENERATION, INC.    
Entity Incorporation, State or Country Code NV    
Entity Tax Identification Number 61-1363026    
Entity Address, Address Line One 285 Big A Road    
Entity Address, City or Town Toccoa    
Entity Address, State or Province GA    
Entity Address, Postal Zip Code 30577    
City Area Code 706    
Local Phone Number 391-5030    
Title of 12(b) Security N/A    
Trading Symbol N/A    
Security Exchange Name NONE    
Entity Well-known Seasoned Issuer No    
Entity Voluntary Filers No    
Entity Current Reporting Status Yes    
Entity Interactive Data Current Yes    
Entity Filer Category Non-accelerated Filer    
Entity Small Business true    
Entity Emerging Growth Company false    
Auditor Attestation Flag false    
Entity Shell Company false    
Entity Common Stock, Shares Outstanding   3,232,382,882  
Entity Public Float     $ 75,777,471